const QTransform QNanoPainter::currentTransform() const
{
float *xform = new float[6];
nvgCurrentTransform(nvgCtx(), xform);
QTransform t(xform[0], xform[1], xform[2], xform[3], xform[4], xform[5]);
delete [] xform;
return t;
}
vec_t world2screen(vec_t v)
{
#ifdef GRAPHICS
float transform[6];
nvgCurrentTransform(vg, transform);
vec_t ret;
nvgTransformPoint(&ret.x, &ret.y, transform, v.x, v.y);
return ret;
#else
return v;
#endif
}
vec_t screen2world(vec_t v)
{
#ifdef GRAPHICS
float transform[6], itransform[6];
nvgCurrentTransform(vg, transform);
nvgTransformInverse(itransform, transform);
vec_t ret;
nvgTransformPoint(&ret.x, &ret.y, itransform, v.x, v.y);
return ret;
#else
return v;
#endif
}
AffineTransform GraphicsContext::getCTM() const
{
float xform[6];
nvgCurrentTransform(platformContext()->canvas(), xform);
return AffineTransform(xform[0], xform[1], xform[2], xform[3], xform[4], xform[5]);
// const SkMatrix& m = platformContext()->canvas()->getTotalMatrix();
// return AffineTransform(SkScalarToDouble(m.getScaleX()),
// SkScalarToDouble(m.getSkewY()),
// SkScalarToDouble(m.getSkewX()),
// SkScalarToDouble(m.getScaleY()),
// SkScalarToDouble(m.getTranslateX()),
// SkScalarToDouble(m.getTranslateY()));
}
void VectorRenderer::fillTexture(TextureID id, Loom2D::Matrix transform, bool repeat, bool smooth, float alpha) {
TextureInfo *tinfo = Texture::getTextureInfo(id);
// Setup flags
int flags = NVG_IMAGE_NODELETE;
if (tinfo->mipmaps) flags |= NVG_IMAGE_GENERATE_MIPMAPS;
if (repeat) {
flags |= NVG_IMAGE_REPEATX;
flags |= NVG_IMAGE_REPEATY;
}
if (smooth) flags |= NVG_IMAGE_BILINEAR;
// Key based on id and flags
utIntHashKey key = utIntHashKey(utIntHashKey(id).hash() ^ utIntHashKey(flags).hash());
int *stored = imageLookup.get(key);
int nvgImage;
if (stored == NULL) {
nvgImage = nvglCreateImageFromHandle(nvg, tinfo->getHandleID(), tinfo->width, tinfo->height, flags);
imageLookup.insert(key, nvgImage);
} else {
nvgImage = *stored;
}
// Save transform
float xform[6];
nvgCurrentTransform(nvg, xform);
// Apply fill transform
nvgTransform(nvg, (float)transform.a, (float)transform.b, (float)transform.c, (float)transform.d, (float)transform.tx, (float)transform.ty);
// Set paint
nvgFillPaint(nvg, nvgImagePattern(nvg, 0.f, 0.f, (float) tinfo->width, (float) tinfo->height, 0.f, nvgImage, alpha));
// Restore transform
nvgSetTransform(nvg, xform);
}
JNIEXPORT void JNICALL Java_org_lwjgl_nanovg_NanoVG_nnvgCurrentTransform__JJ(JNIEnv *__env, jclass clazz, jlong ctxAddress, jlong xformAddress) {
NVGcontext *ctx = (NVGcontext *)(intptr_t)ctxAddress;
float *xform = (float *)(intptr_t)xformAddress;
UNUSED_PARAMS(__env, clazz)
nvgCurrentTransform(ctx, xform);
}
JNIEXPORT void JNICALL Java_firststep_internal_NVG__1_1getTransform
(JNIEnv *e, jclass c, jlong ctx, jobject jdest)
{
float* dest = (float*)getBuffPtr(e,jdest);
nvgCurrentTransform((NVGcontext*)ctx, dest);
}
